i'm struggling to fine the value in this science. you -- find the value in this science. you lied to me and i have to touch your nose? i guess for me, i can tell if they don't look me in the eye, two, if they're blinking a lot and three, if they're kind of moving their mouth. >> i don't intend to touch anybody's nose. i go with what i think. >> i will not say which child, but one of my children, his, okay that, narrows it down to two and three, his ears turn bright red when he lies and he has gotten caught many a time by the ears. >> for some reason that just didn't work for my mom. i don't know why exactly that didn't work out. >>> here's one that's important. love apparently like egg salad has a short shelf life according to the new york times op ed piece. researchers actually studied married couples that had been together 15 years and found wedded bliss lasted only about two years before wearing off. the thing that's weird notice is didn't we already know this? -- weird to me is didn't we already know this? we know the passion does not last. >> i disagreement there are